My 13" MB Air does not have this pattern. I've used a microfiber cloth dampened with isopropyl alcohol (no smears / spots) to clean the screen quite a few times

My 13" MB Air does not have this pattern. I've used a microfiber cloth dampened with isopropyl alcohol (no smears / spots) to clean the screen quite a few times without any problems. I don't think the alcohol is a problem (though the solvent could be -- I used lab-grade isopropanol).